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Overband Magnets

Remove Tramp Iron. Protect Equipment. Maintain Throughput.

 

Bunting® Overband Magnets, also known as Crossbelt Magnets, are powerful, self-cleaning magnetic separators built to remove tramp ferrous metal from conveyed material. Installed inline or across the belt, they protect crushers, shredders, and other downstream equipment from costly metal damage and keep operations running without unplanned stops. Offered in permanent or electromagnetic models, Bunting Overband Magnets are widely used in mining, aggregates, recycling, and other heavy industrial applications around the world.

Overband Magnet Models

Permanent Overband Magnet (PCB)

The most economical and low-maintenance option for continuous tramp metal separation. These self-cleaning magnets use high-strength permanent magnet blocks to extract ferrous metal from conveyed materials.

Ideal for:

  • Mobile crushers and screeners
  • Lightweight ferrous recovery
  • Construction and demolition recycling

Key Features:

  • No power required for magnetic field
  • Cleated self-cleaning belt system
  • Available for working gaps up to 400 mm (16 in.)
Permanent Overband Magnet (self cleaning crossbelt)

ElectroMax Air-Cooled Overband Magnet (EMAX)

This high-intensity electromagnetic separator is 185% stronger and 25% lighter than conventional permanent overband (crossbelt) magnets. Ideal where weight, space, and enhanced metal separation are critical.

Ideal for:

  • Mobile recycling and crusher systems
  • Mining, quarrying, and bulk aggregate systems
  • Removal of challenging ferrous metal, such as excavator teeth

Key Features:

  • Powerful electromagnetic coil
  • Air-cooled design, no oil present
  • Highest magnetic power-to-weight ratio of any overband magnet
  • Optional armored belt
  • Supplied with air- or oil-cooled transformer rectifiers

 

Full Product Details >>

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Oil-Cooled Electromagnetic Overband Magnet (OCW)

Engineered for heavy-duty applications where maximum separation strength is essential. Oil-cooled electromagnets achieve deep field penetration to remove large tramp metal pieces from deep burden depths.

Ideal for:

  • Mining, quarrying, and bulk aggregate
  • Bulk handling terminals and waste-to-energy plants
  • Deep burden depths and high-speed belts

Key Features:

  • Rugged construction with armored belt options
  • Works at increased suspension heights up to 800 mm (32 in.)
  • Suitable for belt widths up to 2,400 mm (96 in.)
  • ATEX-rated models available
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Air-Cooled Electromagnetic Overband Magnet (ACW)

Engineered for demanding environments where reliability and low maintenance are critical. The heavy-duty air-cooled electromagnetic overband range is available in over 300 sizes, providing powerful tramp metal separation without the need for oil circulation systems.

Ideal for:

  • Mining, quarrying, and bulk aggregate
  • Recycling and waste management facilities
  • Bulk handling terminals and waste-to-energy plants

Key Features:

  • Air-cooled design with no oil present, reducing maintenance
  • For conveyors 500 to 3,000 mm (20 to 118 in.) wide
  • Effective suspension heights up to 800 mm (32 in.)
  • Permanent extension magnets can extend the discharge zone farther from the main separator
  • ATEX-rated models available
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Model Comparison Chart

Features Permanent (PCB) ElectroMax (EMAX) Oil-Cooled (OCW) Air-Cooled (ACW)
Magnet System Power Source None Electromagnetic (Air-Cooled) Electromagnetic (Oil-Cooled) Electromagnetic (Air-Cooled)
Cooling Method N/A Air Oil Air
Typical Belt Widths 450 to 1,800 mm (18 to 72 in.) 1,000 to 1,800 mm (40 to 72 in.) 500 to 2,400 mm (20 to 96 in.) 500 to 3,000 mm (20 to 118 in.)
Maximum Suspension Height Up to 400 mm (16 in.) Up to 500 mm (20 in.) Up to 800 mm (32 in.) Up to 800 mm (32 in.)
Optional ATEX Rating Yes No Yes Yes
Optional Armored Belt Yes Yes Yes Yes

Application Photos

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